Trippiest Apps?

I have just got an ipad and I have had an iphone for years,and have come across some pretty trippy apps that are pretty fun to play with on acid or sober.
My favorite so far is Spawn Illuminati

 

I don't know if they have it for Iphone but for android there's an app called ethereal Dialpad, it's the most amazing thing. It a synthesizer that makes sounds when you drag your finger along the screen.

 

Milkdrop, a plug-in for winamp, on the flatscreen with some Goa or Psy trance.

 

if you like Bjork by chance, her Biophilia app looks awesome

 

Bjork is amazing! That biophilia app is really something. Her new album has an app for each song and a mother app. I don't actually have it yet,but I heard crystalline and I loved it!